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Old 12-10-2014, 08:15 AM   #526
Uncle Scotty
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Well his viscosity did drop to 30 grade after only 4000mi... My M1 0w40 was thicker after 5000. Which is a bit odd.


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that is a bit odd....but ho 30wt t6 is still better than 1000 mile 20wt that started as 5w30
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Old 12-10-2014, 08:58 AM   #527
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Originally Posted by Uncle Scotty View Post
there are MANY of us that have gone PAST 7k miles on it without any issue and GOOD uoa's

that's like dumping a half gallon of milk out because you THINK its bad
I am aware of the good results of other people. Do you think it is smart going by other peoples results considering driving style / conditions could be different? My commute to work is only 20 miles round trip, it does see longer trips on the weekend occasionally. Now that I have seen what the oil is doing in my engine and that it sheared to almost 30 weight, I will go to 5000 and send in another sample.
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Old 12-10-2014, 09:04 AM   #528
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Quote:
Originally Posted by gsrcrxsi View Post
Well his viscosity did drop to 30 grade after only 4000mi... My M1 0w40 was thicker after 5000. Which is a bit odd.


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This car does not see a lot of longer trips. On my commute to work, oil pressure does not quite get to normal operating pressure, so I am thinking the oil is not getting all the way up to temp and there may be some dilution going. There was no fuel in the sample, but the car had just been on a hour drive prior to changing the oil.
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Old 12-10-2014, 09:22 AM   #529
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there was some fuel.

but BS doesnt really accurately measure it. they make an estimation based on your flash point. if your value is higher than what they say it is, they just say "<0.5%". look at my UOAs, 445, and 400 flashpoint both returned <0.5% estimates.

but short trips are generally accepted to be more harsh. I drive about an hour each way to work, so i have a lot of highway driving.
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Old 12-10-2014, 09:45 AM   #530
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Originally Posted by Knale View Post
I am aware of the good results of other people. Do you think it is smart going by other peoples results considering driving style / conditions could be different? My commute to work is only 20 miles round trip, it does see longer trips on the weekend occasionally. Now that I have seen what the oil is doing in my engine and that it sheared to almost 30 weight, I will go to 5000 and send in another sample.
20 miles is a lot better than some who do 2 and 3 mile short trips

you should be fine at 5k miles
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Old 12-10-2014, 09:47 AM   #531
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Originally Posted by gsrcrxsi View Post
there was some fuel.

but BS doesnt really accurately measure it. they make an estimation based on your flash point. if your value is higher than what they say it is, they just say "<0.5%". look at my UOAs, 445, and 400 flashpoint both returned <0.5% estimates.

but short trips are generally accepted to be more harsh. I drive about an hour each way to work, so i have a lot of highway driving.
yeah....its 25 miles to the nearest town from where I am right now and 6 of that is gravel road
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Old 12-10-2014, 10:07 PM   #532
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I posted the results at BITOG and the comments were that the results were spot on and to stay with this oil and oil change interval. They did question the viscosity, but once they heard that it is a short tripper daily, that made sense. I will still go 5000 next interval and see how that goes.
Some questioned the Manganese in the oil and the use of Torco Accelerator.
The Manganese is coming from the Torco , it has MMT in it. A couple commented that MMT is going to mess with the o2 sensor and possibly the cat. I don't know, Torco says it is safe. Any opinion's on that? I am only using a small amount of the Torco Accelerator per tank just because California gas is so crappy. I also could be spinning my wheels since it was tuned on California 91 octane anyway... Comments, opinions?
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Old 12-10-2014, 10:35 PM   #533
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20 mile trips are on the short side...but aren't killing your oil at 3k or 4k miles.

nobody knows how the torco will affect your o2 sensors as that is just nebulous....

I think maybe you would do better with a REALLY GOOD tune and no torco

there are, really, VERY few good Subaru tuners in the world and in the usa

WAY fewer than THEY usually think.
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Old 12-11-2014, 08:55 AM   #534
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Quote:
Originally Posted by Uncle Scotty View Post
20 mile trips are on the short side...but aren't killing your oil at 3k or 4k miles.

nobody knows how the torco will affect your o2 sensors as that is just nebulous....

I think maybe you would do better with a REALLY GOOD tune and no torco

there are, really, VERY few good Subaru tuners in the world and in the usa

WAY fewer than THEY usually think.
I am not worried about the tune, it was done by a well known reputable tuner. It is a conservative tune, data logs show all good. The Torco is about me not having faith in California fuel, or just me being anal I suppose.
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Old 12-12-2014, 01:13 AM   #535
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a really GOOD tune wont leave fuel dilution with 20 mile 'short' trips like that...or it shouldn't, anyway

I think ya causin yerself problems where none actually exist
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Old 12-19-2014, 08:23 AM   #536
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Next oil change on my hybrid. Stuck with 500 miles on this interval again; I know it's a "waste" of good oil, but I wanted to wash out more break-in metals before going to "normal" intervals. Hoping for less noise when trying to interpret the next couple of UOAs which will not be for at least 3000 miles. I particularly like that there's "proof" that my air filter is working well...

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Old 12-19-2014, 10:51 AM   #537
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So you do a UOA at a completely useless point, and then complain about the results?
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Old 12-19-2014, 12:16 PM   #538
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So you do a UOA at a completely useless point, and then complain about the results?
I don't think it useless to get an additional data point on the washout of break-in metals from a new engine (out of my own curiosity). As I said, mainly I wanted to decrease the noise from break-in metals in the more "useful" future UOAs. My comment about the air filter was merely pointing out what I believe to be a premature conclusion.
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Old 12-19-2014, 07:34 PM   #539
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Quote:
Originally Posted by bicycle repairman View Post
Next oil change on my hybrid. Stuck with 500 miles on this interval again; I know it's a "waste" of good oil, but I wanted to wash out more break-in metals before going to "normal" intervals. Hoping for less noise when trying to interpret the next couple of UOAs which will not be for at least 3000 miles. I particularly like that there's "proof" that my air filter is working well...




I seriously would be using Wal-Mart conventional 10W-30 at those intervals. The Amsoil OE took a bit of viscosity hit since it starts at 10.8 cSt's.

-Dennis
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Old 12-19-2014, 10:06 PM   #540
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I seriously would be using Wal-Mart conventional 10W-30 at those intervals. The Amsoil OE took a bit of viscosity hit since it starts at 10.8 cSt's.

-Dennis
yeppers.....no sense in dumping good oil at that short of an iterval
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